DPDK with i225/226 on elkhartlake

[Bruce Richardson]

On Wed, Sep 21, 2022 at 03:23:09AM +0000, SamChen 陳嘉良 wrote:
>    Hi,
>    We bind the uio_pci_generic driver and use the command of the attached
>    image to execute DPDK. However, we encountered the problem of device
>    cannot be used on i225V/i226V in elkhartlake platform. Currently, the
>    same method works fine for i211 and intel® Killer™ Ethernet E3100 2.5
>    Gbps. Do you have any suggestions? Thanks!
> 
Hi,

while I can't comment on the NIC-specific issues, I would just comment that
it's really not recommended to use uio_pci_generic - or any other uio
driver - for DPDK any more. You should consider switching to using
vfio-pci. Even if there is no iommu enabled, vfio-pci still tends to give a
better user experience. If iommu is enabled, you also get a lot more
security from the memory protection it provides.

Regards,
/Bruce